BT.601 vs BT.709 Color Matrix Test
YouTube re-encodes video and may normalize levels - the DOWNLOADED file carries the exact code values and range flags; use it for the real measurement. File is tagged BT.709: the RIGHT half must look correct. If the left half looks right instead, your chain decodes with the wrong matrix.
Are these files safe to download?
Every sample file is generated by us — no executable code, no macros. Files are served over HTTPS from our CDN, each with a SHA-256 checksum so you can verify your download and a link to an independent VirusTotal scan report.
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Common use cases
HDMI signal chain troubleshooting
Isolate whether a color or black-level problem comes from the source, the cable/switch, or the display.
Console and PC range matching
Confirm your device's RGB/YCbCr range setting matches what your display expects.
Frequently asked questions
- Why does this need the downloaded file, not just YouTube?
- YouTube re-encodes and can normalize signal levels, so below-black and range-sensitive patterns are only accurate in the original downloaded file.
- What's a range mismatch look like?
- Crushed black detail, clipped whites, or a washed-out/over-contrasted image are typical signs of a full vs. limited range mismatch.